Vertical Sash Sensor

Phoenix Controls Sash Sensors detect a fume hood’s sash position. Sensors can be configured to operate with the sash configurations found on most VAV fume hoods. The sash sensors are used together with a Phoenix Controls fume hood monitor and airflow control valve to maintain a constant average face velocity at the sash opening

A precision potentiometer coupled with a stainless steel, nylon-jacketed cable that attaches to the vertically rising fume hood sash or counterweight cable. As the sash moves, the reel/potentiometer rotates and changes resistance. A variable sash position voltage is received by the fume hood monitor. Multiple sashes are located side-by-side and can be of unequal width

• Direct reel sash sensing technology
• Stainless steel, nylon-jacketed cable coupled to a ten-turn precision potentiometer.Available in two types:
  • Standard throw: maximum retraction of 41 in (1041 mm).
  • Long throw: maximum retraction of 100 in (2540 mm).
• 0-10,000 ohm output proportionate to sash position
• Two to eight 10K ohm reels are provided with a DH/V for multiple side-by-side configurations.
• Tested for 475,000 life cycles
• 22 AWG two-wire, PVC-jacketed signal cable factory wired (12 ft., 3.6 meters)
• Surface or bracket mount (bracket not included) on top of hood
• Dimensions:
  • Standard throw: 2.10" H x 2.50" L x 2.00" W (52 x 64 x 51 mm)
  • Long throw:4.75" H x 4.70" L x 3.10" W (121 x 119 x 79 mm)
• 0-50 °C (32-122 °F) ambient
• Color: Light gray